Sometimes you need to solder your home items, or you want to use a soldering iron. If it is just not at home? Then use a pencil and spring to make one yourself. If you want to know how to do it, just take a look.
First, find a 2B pencil at home and take the refill inside.
Then, take out a spring and screw it on the connection terminal with the pencil lead. The front end of the spring needs to be bent and clamped on the pencil lead.
Next, take out a small piece of wood and attach the connection terminal to it.
After that, attach a switch to connect the wire to the connection terminal.
Finally, the wire is connected to the contact piece of a 9V battery, and the homemade soldering iron is completed. When you need to use it, press the switch, and soon the pencil lead will produce a very high temperature. There is no problem in soldering the pyrography.
Shenzhen Hongyian Electronics Co., Ltd. , https://www.hongyiancon.com